public class PC {
	CPU cpu;
	HardDisk HD;
	void setCPU(CPU c) {
		cpu = c;
	}
	void setHardDisk(HardDisk h) {
		HD = h;
	}
	void show() {
		System.out.println(cpu.getSpeed());
		System.out.println(HD.getAmount());
	}
	public String toString() {
		String s = new String("CPU speed:");
		s = s+Integer.toString(cpu.speed);
		s = s+"  HardDisk amount:";
		s = s+Integer.toString(HD.amount);
		return s;
	}
	static boolean equals(PC a,PC b) {
		if((a.cpu.speed==b.cpu.speed)&&(a.HD.amount==b.HD.amount))
			return true;
		else
			return false;
	}
	PC(){
	}
	PC(CPU cpu){
		this.cpu = cpu;
	}
	PC(HardDisk HD){
		this.HD = HD;
	}
	PC(CPU cpu, HardDisk HD){
		this.cpu = cpu;
		this.HD = HD;
	}
}

